Machine for folding the corners of book covers



June 14,1927. 1,632,452

' C. G. ROLINE ET AL.

MACHINE FOR FOLDING THE CORNERSOF BOOK COVERS Filed -June 10, 1922 5 Sheets-Sheet 1 n 14 192 l Ju e 7 c. G. RoLlNl-z E'r AL MACHINE FOR FOLDING CORNERS OF BOOK COVERS Filed June 10. 1922 -5 Sheets-Sheet 2 710 Caf] 63. ol 211 Charles jorre 5 Sheets-ShadiY 3 C. G. ROLINE ET AL MACHINE FOR FOLDING THE CORNERS OF BOOK COVERS Filed June 10. 1922 June 14', 1927.

No rre Innen/15%@ Cari Charles 753 l June 14 1927 c.`s. RoLlNE ETAL" MACHINE FOR FOLDING THE CORNERS 0F BOOK COVERS.

5 Sheets-Sheet 4 Filed June l0, 1922 452067115115. Carl Roline.

mi 1,632,452 y c. G. RoLlNE E1' AL` MACHINE FOR FOLDING THE CORNERS OF BOOK'COVEHS Filed June 1o, 1922 5 sheets-sheet 5 6/ v j@ 1Q. 51? /55 50 1720.972251@ A i I, Cdr] OZUIe. 53 i i @D QD Charles Norme.

i e n c 5- I 51 e '.0

Patented June 14, 1927.

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.PATENT rtt3- MACHINE non nonnina rien sonrisas or AisooK oovnns.

.Application filed June 10, 15122. Serial No. 567,265.

VThis invention relates to improvements in folding machines particularly adapted,

though not necessarily limited yin its use, for

quiresconsiderable skillto fold the corners. neatly, and as the hand folded result of this` ope-ration has not always beenv a neat job, sheets have been pasted over the inner faces of the body of the cover and the folded over edge and corner of the covered sheet.

It is one of the objects of the present invention to provide improved means whereby the round corners may be expeditiously and neatly folded and secured in position by the employment of mechanical means.

A further object is to provide mechanism of this character embodying an element which not only co-operates with the rounded corner of the filler member 4or body to constitute a partial forni over which the material is folded, but which lalso serves as a reenforcement for the body portion ofthe cover, especially where thin and extremely flexible material is employed for the filler member or body portion.

To the attainment of these ends andthe accomplishment of other new and useful objects as will appear, the invention consists in the features of novelty in substantially the construction, combination and arrangement of the several part'shereinafter more fully described and claimed'and shown in the accompanying drawings illustratingthis invention and iii`which` Figure 1 is a .side elevation. Figure 2 is a top plan view.

`Figure t3 is an enlarged detail sectional view taken `on line 3 3, Figure Q.

Figure d is a lview similar to Figure-3 with parts on'iitted and in a different position. Y

Figure 5 is a detail sectio'nal'viewl on line `55,` `Figure 6. i VFigure 6 is a horizontal sectional view taken on" line66, Figure 5, and with parts omitted. i. i

book cover therebetween when the showing the parts vi'ewtalien `on line 7-7, Figure 6. j Figures 8 `to 12 are detail,diagrammatic views showing the different stepsof folding the cover over the vfiller member or lbody portion..

`Figure 13 isa detail' perspective view of one corner ofthe finishediarticle.

Figure 141 is a top planview of the member. i l

Referring more particularly to the drawings, the numeral. 15 designates a support preferably in the form of a bed plate 'which may itself be supported in any desired or suitable lmanner and is of any desired cou,- struction, the forward end 16 of the bed being preferably enlarge'dand secured to the face of this portion 16 are upright guides 17, preferably in `the shape' of angle irons. rllhese guides 17 areal-ranged atk right angles to each other and the forward extremities 18 thereof terminate short ofeach other so that when a book coverfis placed upon the bed within the guides 17 and advanced so as to contact with the guides, the corner of the coverwill project `through the opening intermediate the extremities c18 ofthe guides. Secured to the bed 16 and preferably a considerable distance in the rear of the ex? Figure 7 isan enlarged detail sectional tremities 18 of the guides 17 are tubular up# rights `19, which are spaced laterally from Ieach other and are provided with .shoulders 20 intermediate the ends thereof, .the extren'iities of the uprights 19 beingl provided with exterior screw thrcads below the shoulder 20 and the portion 21 is adapted to pass through suitable openings in the `bed 16 and also through lthe base 2:2 of the guides 17, each of the uprights 19 being secured in position `by means of a nut `or collar 23 engaging the threaded extremity 21 beneath Athe bed 16 and co-opera'ting with the shoulder 2O to clamp the bed 16. Arranged to operate .within the ides 17 isa clamping member 211, which cooperates with the face of thebed 16 to clamp the latter `is in position vand one corner thereof projects Vbetween the ends 18 of the guides 17.

This clamping member 24 is adaptedto be reciprocated toward and away `from thebcd 16 during the clamping and unclamping movements thereof and is `guided in its movement by means ofztubular members 25 shaper Y to telescope over the open upright tubular guides 19. These members 25 are secured to Cil the clamping member 24 in any suitable manner preferably by means of a. flange 27 through which fastening screws 28 pass and engage the clamping member.

Arranged wit-hin the tubular member 19V.

isa! coil spring;- 29, one end of which projects through the open upper end of the tubular member 19 and engages the closed end 26 of the niemberl 25. rihe other end of the spring engages au adjusting screw 30, which' is threaded int-o the lower end of the tubular member 19 and is provided with-a knob or'handle 31, by means of which the screw may be adjusted to vary the tension of the spring 29.

The Vnormal tendency of the spi s 29 is to elevate the clamping member by their engagement with the closed ends 26 of the tubular members and the he of the member 19 is such that it will 4not interfere with the clanipingr operation of the member rilhe tubular membersv 25 means of a web 2l and this web is engagedv by a roller VZ39, carri d an arm the latter bong pii/'otally mounted intern'iediate paced upr glits 35 as at 36, the

alim being pivotally connected as at 3? Tith the arm 38 intermediate the ends hy The end 39 of the arm conn ected b y fait e latter. cts over the arm 34 and is provided li an adjusting'screw 40, which engage the arm 94 for varying` the position of the arm 38 with respect to the arm 34 for the purpose of adjusting the clampingmember 24 to compensate the varying thicknesses of the covers to be operated upon.

The arm"94 is rocked about its pivot 36 to depress the clamping member 24 against the stress of the springs 29, in any desired or suitable manner but preferal'iiy by means of a. cam 41, which is engaged by an antifriction roller 42 carried by the end of the arm 38. l

This cam 41 is connected with a'shaft 43 journaled in suitable bearings 44 mounted upon the base 15, and motion is imparted to the shaft 43 and the cam 41 in any desired or suitable manner preferably from a driven shaft 45 having a lworm 46 connected theretorand which worm engages a worm gear A47 connected with the shaft.

Thus it lwill be manifest that when the shaft 43 is rotated in the direction indicated Vby the arrow in Figure 1 the cam 41 will rotate and will engage the anti-friction roller v42 carried by the arm 38 to roch the arm 34 about its pivot 36, causing' the antifriction roller 33 t the forward end of the l Vl i arm 34 to depress the 'clamping` member 24 againstthe stress of the springs 29, and hold it depressed during the interval of time that iree `end of' the cam 41 is in engagement with the roller As soon as this cam passes out of engagement with the roller 42, the stress of the springs 29 will operate to raise the clamping member 24.

During` the ,reciprocating movementV of the clamping1 member 24 the latter will also be guided by means of the flanges 17, the latter being of aheight to serve such pur` pose.

rlhe clamping member 24 is provided with a slot 48 therethrough and in alinement with the opening bet-veen the extremities 18 of the flanges 17, yand the walls-of this slot are provided with guide grooves49v (see pai-- ticularly Figures 5 and 6). c

Arranged within the slot 48 is a combined shaper and re-enforcing Vmeniber the body portion of which is provided with lat erally projecting)l ears or ribs 51, which reciprocate within the grooves 49. rPhe forward end ofthe member 50 ispreferably depressed as at 52 (see particularly Figures 3 and 10) so that the lower face of the porthe corner ot the book cover while the upper face 54 of the portion 52 is convened and inclines upwardly from the extremity The member 5 moves bodily with the clamping` member-24 and is adapted for reciprocation with respect thereto so that after the clamping member 24 is in a position to clamp the bool; cover upon the bed 16, the member 59 will be advanced so that the e5;- tremity of the portion 54 will be projected through the opening between the extremities 18 of the franges 17 to cause the extremity 53 to coincide with the rounded extremity of the filler or body portion of the Cover so that the coveringl material when it is folded over the body portion or filler, in a manner to be hereinafter set forth, 'will also be folded over tee entrer 'ty of the portion 52 of the member 50, after which the member 50 recedes to permit of the completion of the folding operatiomvalso in a manner to be hereinafter setforth. Y

This member 50 may be reciprocated in any desired or suitable manner but prefer` is pivotally connected as at`57. The other end of the link 56 is pivotally connected with an'arm 58, the latter preferably projecting laterally from the link 56 and is connected lwith a reciprocating bar or member 59 mounted to slide in a suitable bracket 60. An anti-friction roller 61 is connected with thefree end of the rod 59 and engages a lll-l Cil to recede or move backwardly in the sloti 48 of the `clamping member 24.

The movement of the member 50 in the opposite direction is accomplished preferably by means of a spring 63, which latter encompasses the bar 59, one end of the springv engaging andresting against the bracket 60, while the other end of the spring engages a collar 64v adjustably` mounted upon the bar 59 and by means of which collar the tension of the spring 63 may be varied. i

It will therefore be seen lthat the member 5() is moved in one direction by positive means, to-wit: the cam 62, roller 61' and arm 59, and is moved in the opposite direction by means of the spring 63 engaging the bracket and the shoulder 64E.

The bracket 60- and arm 59 are maintained at allvtimes in the same horizontal plane while the member 50 being connected with the clamping member 24, reciproeates in ay direction to raise and lower it, and this operation of the member 50 withrespect to the bar 59 is permitted by reason of the link 56.

The base 16 is provided withA a slot 65 therethrough adjacent the opening between theextremities 18 ofthe flanges 17 and this slot is constructed on an arc of a radius eorresponding `with the radiusof the round corner of the book cover, the inner wall of the slotv being disposed in such a position that when the corner of 4the book cover is projected through the opening between the ends 1S of the flanges 17 as shown in Figure 37 Vthe periphery ofthe corner of the cover will stand in close proximity to the slot.. i n a, folding Supported beneath thebed `16 is member 66, which is provided with a chamber 67 withinwhich is arranged a spring 68, one endet' the spring engaging the bottom of the chamber Vand the other-.end of the spring projecting through the open and upper end ofthe chamber and engaging the lower face of the bed 16. This member 66 is provided with atongue or flange 69 Vwhich projects above the top of the member and is of a shape to conform to and project through the slot 65.

The normal tendency of the spring 68 is to depress the member 66 and i ithdiaw the flange 69 so that it will stand below vthe upper'faee of the bed 16 andthe member 66 may be moved in the opposite direction and against the stress of the spring 68 in any i suitable manner.

rr simple and eiiicientimeans for accomplishing this movement embodies a lever.70,

`which is pivotally yconnected intermediate its ends as at 71 to a suitable fiile-rum and is preferably arranged beneath the portion 15 of the bed. They forward end. of the lever 70 is connected with the member 66 preferably by means of a pin and slot connection 724-73, so that when the lever is rocked about its pivot 71 in one direction the lmember -66 will be raised and when rocked in the opposite direction the spring 68 willv permit the member 66 Ito be depressed. i

rin upright `74C is connected with the free end ofthe lever 70 preferably by means `of a pinl and slot connection 75-76 The niem. bei' 74 is arranged in an upright position to slide through a suitable guide 77 and carried by the free extremity thereof is an antifriction roller78, which is adapte-d to be engaged by a cam 79 carried with the shaft lf3, the high` portion of the cam beingso timed that the member 66 will `be raised and will be permitted to be depressed at the proper times or steps in the cycle of operation of the mechanism.

This member 66 is adapted-to be raised at a time in the cycle of operation of the ma chine so' as to extremity or corner 60 (see `Figures 3 and 9) of the cover sheet so that the corner will assume positionto be'further Yfolded anddepressed upon the body portion or vfiller by means of another folding member 81.`

This element 81 is cut 'away on its lower face at the forward extremity thereofas at 82 to form a downwardly opening recess eX- tendmg through the extremity of said member. The upper wall of the recess. orcut` away portion inclines downwardly and rearwardly from the `extremity of the member 81, andthe sidewalls converge inwardly from the extremity of the member. The forward extremity of the member 81 adjacentu this cut away portion 82 is bifurcated 'as at partially `fold the projecting' jfolding member permits the latter tol-gather j ion in the fold or extremity of the coverv as the member-81 is advanced to depress .the

foldedportion upon theflller or body member. s

The member Slis adapted for a reciprog.

`is provided with a socket into whichon'e er;-

tremity of the membei' 81 projects and is detachably j securedto the crank armie by means of a fastening -serew ,86, so thattlie member 81 maybe interchanged with another member if desired.

The member 81 is so timed in the cycle of operation of the machine that it will not 1ner'lere with the operationot the folding lmember or the operation oi' the membery 50, and each oit these members 50 and (l0 are pressed Jfrom the position shown in Figure the member Vi) to allow the turned up portion oit the cover to be engaged by the torward end o the member 81,y the advancement ot thiA member 81 will depress or turther 'told the turned up corner 80 into the position shown in Figure 1.

risV a. means orvholding the endet the member 81 down against the work, a suitable roller 87 is provided which is Vjourraled in suitable bearings 88, and which bearings slide in suitable guideways S0. spring 00 engages the bearing by one end and the other end o1' the spring engages an adjust able bloeit or element 91 also movable in the guideways 89. An adjusting screw 92 enthe block or member 01' and through the medium ot this screw 92 it will be n anitest thatthe tension ot the spring mayI be varied to vary the pressure ot the. roller 87 upon the member 81.

Y also supported from beneath and adjacent its forward end by means ot a sui-able roller 93 `iournaled in a bearing Sil, which lat-ter is adapted to be raised and lowered kby means ot an adjusting screw 95.

A scraper' 90 which is preferablyyieldably supported' by means Vot a. spring 9T may be disposed beneath the forward end or 81 tor scraping therefrom any oit the adhesive material such as glue7 paste or the lilte which might adhere to the mem ber 81. Y v v 1t desired a scraper 98, controlled by a spring 99 carried by va suitable support 100 may alsov be provided so as to engage the upper tace ot the extremity 52 ot the mem^ ber 50 as it is recipro ated, to remove therefrom any adhesive material which might ad here thereto.

En Figure 8, the tiller member or body of the book cover is indicated at 101 and one ot the round corners is indicated at 102.

V105 designates the cover sheet of some thin material usually employed `tor this purpose. The corner 10ft 'ot the cover sheet is cut oli as shown and the irst operation is vdono by hand. Adhesive material having been applied alongthe edges ot the cover sheet 103,

the sides ot the cover are folded overby hand until they assume the position shown at 105 in Figure 9. That isfto say these edges 105 rllho member 81 is Awill be sealed down upon the body or filler material 101. l

rlhe cover, `inthe shape as shown in Figure 9, is' then placed into the machine so that the side edges will engage the guidesl? and the corner 102with the loop shaped port-ion 80 ot the 'cover 103'tormed by the folding over ot the sides 105 will-project through the opening between the extremities 18 of the 'flanges 17. f

rrilhe tiret operation is the lowering oi' the clamp member 211, the lower tace ot the clamp meniber'yis cut away as at 106 (see particularly Figures Gl and 7) so that when the clamp n'ieinber ci and rests upon the cover the unsealed portions 80 atl the remaining corners 10Q, ot' the bool-r cover will not be depressed and sealed down by the clamp member 2li, but the ,cut away portions 100 will stand over those unsealed corners Y which are beneath the clamp.V

.fi-Ster the clamphas been lowered into contact with the cover the cam 62 will have assumed a .position to permit the spring 63 to move the menib'sr 50 Yorvmrdly so that the extremity o3 thereotV will pass into or under the looped or folded portions 80 o1 the cover 103, and the member 50 will move forwardly to such an extent that the extremity 53 thereof will coincide with the rounded corner 102. This member 50together with the port-ion 52 thereof will then not only constitute a shape; member but inasmuch as the lower surlace thereotv is dat. and rests fiat against the filler or body portion 101 of the cover it will serv as a ie-enforcement for the corner ot the ller to prevent injury thereof while the 1 `ment so .that it coincides with the corner 1027 the cam 79 will be brought into opera tion to engage the roller 78 and depress the member 74 to roch the lever 70 about its pivot 71 and raise the element G6 so that its lange 69 will engage the corner portion 80 ot the cover 103 (see Figures 3 and 10) and to told this portion upwardly and against the edge ot the round corner 102 and the extremity 103 of the memberO. l

J ust as the flange 60 reaches the limit ot its upward movement, the member S1 will be started on its torward move'nent by means of the crank arm Sfr, and as this member lstarts to move torwardly the cam 7 9 f will move out ot engagement' with the roller Lesaaal portion 82 of the member 8l decreases in area and has ribs or corrugations 81a on its lower face, and asa result of the shape of t-his cut away extremity, will gather in the upstanding portion SObf the cover 1.03 (as shown in Figure. il), during this step of the folding operation. I

Just before the member 8l reaches the limit of its forward niov'ricnt, the cam 62 will operate upon the bar to move the latter against the stress of the spring G3, causing the member to recede with a slightly greater Speed than the speed of the advancement of t-he member 81, so as to permit the extremity 53 of theinember 50 to be withdrawn from under the folded portion 80 of the cover and permit the member 81 to fold that portion down tightly upon the filler member or body portion lOl ofthe cover.

The member 8l will then recede and as it is receding` (see Figure l2) the cam 4l will assume a position with respect to the roller 42 on the arm 88 so as to permit the springs 29 to raise the clamping member E24, and with it the member 50. The folded corner of the cover may then be. withdrawn and the cover shifted to present another corner for the folding operation.

`While the preferred form of the invention has been herein shown and described it is to be understood that various changes may be made in the details of construction and in the combination and arrangement of the sev-` eral parts, within the scope of the claims, without departing from the spirit of this invention. Y

What is claimed as new is:--

l. A machine for folding round corners of book covers, embodying means for holding the work, a sliaper adapted to coincide with the corner, two separate folding means operating upon the work and transversely to each other, and means for withdrawing the Shaper at a predetermined time in the cycle of operation of the machine, the said holding means embodying a reciprocable clamping element, said element supporting theV said sliaper for movement therewith and withrespect thereto, portions of the work engaging surface of the said element being cut away to prevent pressure upon the portion of the material which has not been completely folded.

2. A machine for folding round corners of book covers, embodying means for holding the work, a Shaper adapted to coincide with the corner, means for folding the work over the Shaper, means for withdrawing the i Shaper at a predetermined-time in the cycle of operation ofthe machine, and a scraper for cleaning the surface of the said Shaper.

3. A machine for folding round corners of book covers, embodying means for holdf ing the work, a Shaper adapted to coincide with the corner, means operating upon the` work to fold the work over the shaper, means for withdrawing the shaper ata predeterminedtime in the cycle `of operation of th,e machine, and a scraper for cleaning the surface of the said folding means.

et. A machine for holding round corners of book covers, embodying. a reciprocable clamping element for holding the work, a

shapei member carried with the clamping element and for movement with respect thereto, an actuator for the Shaper member and with respect to which actuator the shaper element is bodily shiftable, a link connece tion between the Shaper and actuaton'two folding means operable upon the work transverse to each other., and means for actuating the parts in timed relation with respect to shaper element is bodily shiftable, a linky connection between the Shaper and actuator, two foldingl means operable upon the work transverse to each other, means for actuating the parts in timed relation with respect to each other, and means lfor simultaneously adjusting the clamping element and the shaper member with relation to their respective actuating' means for compensating different thicknesses of work to be operated upon.

6. A machine for folding round corners of book covers, embodying means for holding the work, a sliaper member adapted to coincide with the corner of the work operated upon, two separate folding means operable upon the portion to be folded and transversely with respect to each other and while the Shaper is 'in position, one of the folding means also further operating upon the work after the Shaper is removed, means for removing the Shaper, and means for actuating the said folding means, one of the said folding means embodying a reciprocable element, the work engaging end of which is cut away onits lower face to form a. cavity inclining downwardly and extending backn wardly from said end.

7 yA machine for folding round corners of book covers, embodying means for holding the work, a Shaper member adapted to coincide with the corner of the work operated n upon, two'separate folding means operable upon the portion to be folded and transversely with respect to each other and while the shaper is in position, one of the folding means also further operating upon the work after the Shaper is removed, means for removing the Shaper, and means for actuating the said folding means, one ol' the said folding means embodying a reciprocable element, then-'crit engaging;v end of which is out away on its lower tace to torni a cavity inciining downwardly and extending baekwardly from said end7 the Wall of said cavity being ribbed, the ribs extending in the direction ot reciprocation of said element;

8. A machine 'for foldinground Corners of' Vbook covers, embodying means for holding the Work, a shaper adapted to coincide With the corner, two separate folding means operating' upon the work und transversely with respect to each other7 means for Withdrawing the Shaper at a predetermined time in the cycle ot operation ot the machine, means for compensating `different thicknesses of Work to be operated upon, means for varying at will the extentof operation of the thicknesses ot the work, and means tor correspondingly vadjusting one ot the said folding means. Y-

9. For use in a machine for 'folding round corners ot book covers, a combined shaper and Work re-enforcing element having a rounded extremity adapted to be passed under the partially folded material to a position to coincide with the round corner of the work, the upper surtaceof the said element extendingupwardly and rearwardly from said extremity and being convened in a direction transverse to the length thereof. In testimony whereof We have signed our naines to this specification, onvthis'Qfth day of May, A. l). 1922. i

CARL G. ROLNE. CHARLES NURRE. 

